Altering radioactive decay

Since beta decay emissions are affected strongly by a magnetic field, I am wondering (asking) if there has been any investigation into an oscillating (reversing) magnetic field, applied to a test sample under pressure, inducing a beta decay in a test sample.

I have been searching for something along the line of what I have suggested and find this abstract which is the sort of thing I am asking about here.

Abstract – "Measurements are reported of the acceleration of the ﬁrst-forbidden beta decay of
137 Cs by exposure to intense, low-frequency electromagnetic ﬁelds. Two separate experiments were
done: one in a coaxial cavity, and the other in a coaxial transmission line. The ﬁrst showed an
increase in the beta decay rate of (6.8 ± 3.2) × 10−4 relative to the natural rate, and the other
resulted in an increase of (6.5± 2.0) × 10−4. In addition, a Fourier analysis of the rate of 662 keV
gamma emission following from the beta decay in the standing-wave experiment showed a clear
indication of the frequency with which the external ﬁeld was switched on and oﬀ. A simultaneously
detected gamma emission from a placebo nucleus showed no such peak."